I just read an insights article, and then clicked on "Post Comment" at the bottom. The comment edit window that came up was sans the standard tools usual when posting to a thread. I mean the icon toolbar that appears above the edit box; they didn't appear. I wrote a comment, and clicked post, but the page didn't refresh. So then I looked up the thread on the comments on the article, and aha my post had been posted after all. It sounds like some GUI problems when you start with a link to an Insights article, as opposed to finding the article's thread in the normal forums. A simple solution, might be to replace the list of comments plus "Post Comment" button at the bottom of an Insights article, with a button that says "Visit The Comments Thread".